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annunciator

noun an·nun·ci·a·tor \ ə-ˈnən(t)-sē-ˌā-tər \

Definition of annunciator

: one that annunciates; specifically : a usually electrically controlled signal board or indicator
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annunciatory

play \-sē-ə-ˌtȯr-ē\ adjective

First Known Use of annunciator

circa 1753

in the meaning defined above

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